Improvement in fire-place stoves



Fire-P|ace Stoves. N0,147,673; Palmeri Feb.17.1874.

4 f/MM@ UNITED TAfrEs HUGH L. MAVOY, OF BALTIMORE, MARYLAND.

IMPRovEMENr IN FIREPLAcE stoves.

Specification forming part of Letters Patent No. 147,673, dated February 17,1874; application filed September 29, 1873.

To all 'whom it may concern:

Be it known that I, HUGH L. MAVOY, of the city of Baltimore and State of Maryland, have invented certain Improvements in Firellaee Stoves, of which t-he following is a speciiication; and I do hereby declare that in the same is contained a full, clear, and exact detered, the intention being to allow the said doors to be brought to the front when the stove is to be supplied with fuel, and then to be turned to the rear, exposing the mica windows, to produce an agreeable illuminative effect. My present invention relates, further, to other elements designed to increase the illuminating surface of the stove, also forming a part of the exterior casing or stove proper, consisting in hinged doors meeting at and opening from the central front part thereof7 the said doors being composed of horizontal bars, so formed as to receive mica strips or strips of other illuminating substance in the spaces existing between them. Other features, not claimed as a part of my present invention, are shown and described herein, and which will form the sub ject of a separate application; but they are herein set forth as entering into the general construction of that class of stoves to which I propose applying'the speciiic invention herein claimed.

In the further description of my invention, which follows, due reference must be had to the accompanying drawing, in which- Figure l is a front elevation of the stove, partly in section. Fig. 2 is a vertical side section; Fig. 3, a sectional plan upon the line my; and Fig. 4, a top-view of a detached portion of the same.

Similar letters of reference indicate similar4 parts of the invention in all the views.

A is the cylinder or stove proper, fastened to the hollow base B. The upper end of the cylinder is conical in form, having a part cut away for purposes hereinafterv described. The conical head of the cylinder is provided with a closely-fitting revolving cover, O, one side of which is slotted, and arranged to be fitted with mica, which side, when brought to the front, comes over the openingl alluded to, formed by cutting away a portion of the top of the stove. The other side of the cover has a door, a., to be used in feeding the stove with fuel. D is a magazine, secured to the inner side of the cylinder, and has a conical cap, b, suspended rigidly by a bolt, c, from the cover O.V This cap is also provided with a door, d, in a position corresponding with that of the door a. It will be observed that the revolving cover O and cap b will move together, as they are both fastened to the bolt c, passing through the top of the cylinder. E is a iiange extending from the inner side of the cylinder, as a rest for the rebrick, and has a ring, j', suspended from it 4by strap g. F is a plate with a .toothed or fringed periphery, occupying the position usually filled by the grate. The plate F, which is pivoted to the cross-piece h, can be given a limited rotary movement by means of the bar k. The bar is secured to a sliding plate, Z, under the plate F, and is ca pable of a radial movement in connection with the sliding plate, as well as the rotary movement referred to. The sliding plate covers an opening, l', in the plate F, which is designed to be used in clearing the fire and removing the clinkers. G is a support for the bar k. H H are hinged doors, composed of longitudinal bars, between which mica is inserted, and are intended to produce the appearance or eifect of an open grate. The doors H H may be connected so as to form one pair of doors, which, when opened, expose to view the entire front of the re.

The manner of conducting the smoke to the chimney is by the production of either a direct or an indirect draft, which is accomplished by means which I now proceed to describe. A radiating jacket, represented in the drawing by I, is fastened to the hollow base at the points m and n, at which points openings lead from the jacket to the base. The jacket is divided ATNT 10' vertically by the partition o into the compartments s and t, and provided with the damper p. K is the connecting-pipe between the jacket and stove proper, and K the base of the stovepipe leading to the chimney. Upon the damper p being closed, the stove has no direct conimunication with the chimney, and the smoke and heated air are, therefore, compelled to pursue the course indicated by the arrows drawn in full lines-viz, through the compartment s and hollow base B, and thence through the com]' artment t, before reaching the stovepipe K.

This circulationn tends -to heat the sui-faces of thejacket and hollow base, a-nd thus ren ders the stove more eflicient. Vhen the damper p is opened a direct outlet is afforded the smoke, which takes the direction shown by the dotted arrows. The opening of the damper is usually necessary, when the lire is first made, in order to increase the draft and allow the escape of smoke. A cavity, r, is formed in thejacket for the passage of air to the stove in case it is to be arranged to heat upper .stories of the building. The stove is inclosed in a case, L, having a front, M, which 'may be ornamentcd.

After the magazine has been filled with coa-l, and the coal upon the plate F is sufficiently ignited to produce an illuminating effect, the cover C is turned so as to bring the side having themica windows to the front. At the same time the cap b, moving with the cover, is carried to the rear of the stove, and out of sight. The ange N serves to guide any particles of coal that may fall between the magazine and the inner side of the stove to the fire.

By the use of the plate F, as shown, instead of the ordinary grate, less clinker will be formed, as the current of air passes to the rearound the periphery of the grate area, instead of be only part sufficiently exposed to furnish draft room. lVhile the liability of the formation of clinkers is thus diminished, provision is, however, made for the removal of such as may be produced in the opening i', through which a poker may be introduced.

I claim as my'invention- 1. The combination of the revoluble cover C, having the illuminating surfaces at one side, and the door a at the other, conical magazinecover b c provided with the door d, and conical top of the stove proper having the front opening for the purposes of feeding and illun'iinating, substantially as herein set forth.

2. The hinged horizontally-barred illuminative doors H H, in combination with the exterior casing of the stove proper, and the revoluble illuminating cover C thereof, substantially as described.

In testimony that l claim the foregoing I have hereunto set'my hand and seal this 27 th day of September, 1873.

HUGH L. MAVOY.

Witnesses:

Wn. T. HOWARD, luos. M'nanoon.

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